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2. Armor-piercing bullet - Wikipedia

   en.wikipedia.org/wiki/Armor-piercing_bullet

   Armor-piercing bullets typically contain a hardened steel, tungsten, or tungsten carbide penetrator encased within a copper or cupronickel jacket, similar to the jacket which would surround lead in a conventional projectile. The penetrator is a pointed mass of high-density material designed to retain its shape and carry the maximum possible ...

3. Armour-piercing ammunition - Wikipedia

   en.wikipedia.org/wiki/Armour-piercing_ammunition

   Armour-piercing rifle and pistol cartridges are usually built around a penetrator of hardened steel, tungsten, or tungsten carbide, and such cartridges are often called "hard-core bullets". Rifle armour-piercing ammunition generally carries its hardened penetrator within a copper or cupronickel jacket, similar to the jacket which would surround ...

4. Bulk loaded liquid propellants - Wikipedia

   en.wikipedia.org/wiki/Bulk_loaded_liquid_propellants

   In 1981, the Naval Weapons Center tried a 350 round/minute cyclic bipropellant gun, using 90% nitric acid and a proprietary hydrocarbon (probably a low molecular weight alkane, like propane). High or low breech pressures could be obtained by varying the surface to volume ratio of the injector. Varying the oxidizer ratio could change performance.

5. Kinetic energy penetrator - Wikipedia

   en.wikipedia.org/wiki/Kinetic_energy_penetrator

   The principle of the kinetic energy penetrator is that it uses its kinetic energy, which is a function of its mass and velocity, to force its way through armor. If the armor is defeated, the heat and spalling (particle spray) generated by the penetrator going through the armor, and the pressure wave that develops, ideally destroys the target.

6. Bullet - Wikipedia

   en.wikipedia.org/wiki/Bullet

   Bullets are often tapered, making them more aerodynamic. Bullet size is expressed by weight and diameter (referred to as "caliber") in both imperial and metric measurement systems. [1] Bullets do not normally contain explosives [2] but strike or damage the intended target by transferring kinetic energy upon impact and penetration.

7. 120×570mm NATO - Wikipedia

   en.wikipedia.org/wiki/120×570mm_NATO

   120×570mm NATO tank ammunition (4.7 inch), also known as 120×570mmR, is a common, NATO-standard (STANAG 4385), tank gun semi-combustible cartridge used by 120mm smoothbore guns, superseding the earlier 105×617mmR cartridge used in NATO-standard rifled tank guns.